Sash lift and stop



May 30, 1933- H. Rosr-:NwALD SASH LIFT AND STOP Filed Feb. 20, 1932 2 Sheets-Sheet 1 l fac-n.1.

May 30, 1933.

H. ROSENWALD 1,911,469 l SASH LIFTy AND STOP Y.

' Filed Feb. 20, 1932 2 Sheets-Sheet 2 lPatented' May 3o, i933l -4 UNI-TED sirmas PA"rslwr j www Emir nosniwwnnn, voir sionxirnnrsi sournnaxorn sasnrirr-aim sror puede ma r'etmy so, im. semi n. sans?.

Thisinvention relates to window sash lifts and has for its primaryobject" to provide.

novel means in substitution of the customary ro and'weights for counterbalancing the sas so as to hold same in any position to which it may be moved.

A further object of the inventionis to provide a device of this kind which is e'X- tremely simple, which is composed of a minimum of parts and which can be easily andv quickly ap lied to the window-structure.

, A still urther object of the invention is .to provide a device of this t p e which can be positioned in the groove or holding the 5 usual parting stri s.V

The invention as further and other objects which will be later lset forth and maniested in the course of the following descripion.

In the drawings :f Fi 1 is a vertical sectional view showing the eviee applied to a window structure;

Fig. 2 is a similar view showing the win- 4dowsope'n; l Fig.4 3 is a section on line 3-3 of Fig. 5;

Fig.4 4 is an enlarged fragmentary side elevation ofthe parting strip; I gig. 5 is asection on line 5-5 of Fig. 3;

an 3o outer portion 3 of substantially C-shape in cross section is formed inte ral with the free sides of the portion 1. Iie outer portion 3 of the partin strip is further` formed with longitudina slots 5. `The arting'strip may be madein two sections as s own in Fig. 5 and accordin ly the lower end of the upper section is ormed of reduced diameter as sh'own at 7 and telesco within the upper end of the lower section. The reduced Fig. 6 is a side elevation of a modified form and receives the upper end of t efcoi a single sprin upon which a cup 8 that is fitted within the upper section engages, the cup forming a seat for the lower end ofthe' coil spring 9 for the upper sash 10. Screws 11 are,y em ployed to secure the strip in the roove 2. Referring to Fig. 5 a cap 12 is slida ly fitted y in the'outer part '3 o the arting istrip spring on its interior.- A housing-13 is secured by ai screw 14 in an o ening provided therefor in the sash 10'an has an 4open end which confronts the ortion 3. A finger 15\is piv' oted at 16 in t e' housing 13 at one end and has its opposite end freely resting upon'the 12, t e It will be understood that a simila'i` lio'usand finger structure 4is provided for the 5. ing

lowersashl17 'and stops 18 are 'preferably l positioned in the guides for the sash so as to restrict their opening movements. 70 From the foregoing it will be seen that but arting "strip is provided. which houses eaciil of the sprin 9-andlw h.1ch can" be easily and quickly app ied in position, the

acting to counte'rbalance'the to ho d same -in any position to which they maybe moved. The pur of the pivoting 4 of the finger 15 is to provide for expansion' or contraction of the sash or movement thereof which might cause binding or friction ofthe finger against` the walls of the slots 5.' The Aslots are of course located on opposite sides of the portion 3 and the slot for the upper sash may have a right angular extension 6 as v -structure shown in the remaining- Fi shown in Fig. 4 to receive the `finger 15 .when 85 the upper sash is in closed positionto assist same in being held by the spring. As shown in Fig. 6 the parting strip may be made in 'one piece, and otherwise is identical with the and 9 has the inner portions 1 and 3 and the slots 5. In this form however, a cup- 8' for the '-lower end of the upper spring is secured by oneof the screws 11 portion 3. v

What is claimed, is: .in

1. In combination with the upper and' lower -sashes of a window, tubularparting on the interior 'of the 'u v'strips eachhaviiig a portion ofsubstantially 59 end ofI the upper section forms a shoulder u -cro-sectionformed to be received- ,inthe l finger'extending through the`.slot I arting strip groove of a window frame and aving an outer longitudinally slotted portion of substantially C-cross-section integral with the free sides of the U-portion, coilsprings in the outer portions of the strips tubular caps engaged over the upper ends o the springs, housings secured in the sides of the sash'and having open outer ends which substantially aline with the slots of the strips, and horizontal fingers pivoted at one end within the housings and having their opposite ends free and extending through the slots of the strips and seating on the closed ends of the caps. .y

2. In a device of the type set forth, partin strips each composed of a. ,tubular slotte member having a part to be received in the parting strip groove of a window frame, a

pair of coil springs in each of said members,

caps on the upper ends of the springs, lingers pivoted at one end to the window sash and having free ends which extend through the slots and are engaged with the closed ends of the caps, and means to hold the lower ends of the upper springs against downward movement. l

d 3. In a device of the type set forth, parting` strips each composed of a tubular slotted member having a part to be received in the parting strip groove offa window frame, said strips being formed in sections, the lower ends of the upper sections being reduced and telescoped in the upper ends of the lower sections, cups in the upper sections seated on the shoulders resultant from the reduced ends, a pair of coil springs in each member, the upper of which have their lower ends received in the cups, caps on the upper ends of the springs, and lingers pivoted to the window sash and extending through the slots of the members and having ends which are engaged/'With the` closed ends of the caps.

sash and extending through the slotsl of. the v strips and engaged with the upper ends ofthe sprmgs to hold the window sash under tension. y

7. In a device of the type set forth, a pair of hollow parting strips having slots, tensioned means mounted within each of said strips, and means movably connected to.the Window sash and extending through slots of "the strips and engaged with said tensioned means whereby to counterbalance the window. o

In testimony whereof I aiiix my signature. HARRY ROSENWALD.

4. In a device of the type set forth,'parting strips each composed of a tubular slotted n member having a part to be received in the parting strip groove of a window frame, saidy strips being formed in sections, the lower ends of the upper sections being reduced land telescoped in the upper ends of the lower sections, a-pair of coil springs in each member, and means carried by the window sash-and extending through the slots of the tubular members f and engaged with the springs whereby the window sash is tensioned.

5. Ifn a device of the type set forth, partingstrips each composed of a tubular slotted member having a part to be received inthe 

